W140 Interior Lighting

[dbs600]

Hello everyone. I have three questions:

1. Has anyone ever replaced the backlighting for the graphics above the exterior light switch (which is to the lower left of the steering wheel)? If so, how is this done?

2. Does anyone know if the outside temperature LCD on the instrument cluster is back lit with a bulb that can be replaced, or is the LCD self lit - needing replacement of the LCD itself? Note: I can still see the temperature, but faintly.

3. Has anyone ever replaced the backlighting for the red/blue HVAC buttons between the center vents? If so, please describe. Per other posts regarding replacement of the thumbwheel lighting - I am assuming that the small glove box above the vents needs removal, but what takes place from there?

Thank you, JD.